21112011110110 has 32 divisors (see below), whose sum is σ = 38018473787232. Its totient is φ = 8441059645440.

The previous prime is 21112011110087. The next prime is 21112011110171. The reversal of 21112011110110 is 1101111021112.

It is a super-2 number, since 2×21112011110110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562413262 + ... + 562450798.

It is an arithmetic number, because the mean of its divisors is an integer number (1188077305851).

Almost surely, 2^{21112011110110} is an apocalyptic number.

21112011110110 is a deficient number, since it is larger than the sum of its proper divisors (16906462677122).

21112011110110 is a wasteful number, since it uses less digits than its factorization.

21112011110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60988.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 21112011110110 its reverse (1101111021112), we get a palindrome (22213122131222).

The spelling of 21112011110110 in words is "twenty-one trillion, one hundred twelve billion, eleven million, one hundred ten thousand, one hundred ten".